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What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.

Your kid will be captivated as she watches liquids change color before her very eyes during this fun science project that introduces some chemistry basics.

Incorporate some math and science thinking into your annual fall fun with this pumpkin investigation activity! Your child will have a blast investigating various ways of measuring pumpkins, making estimates, taking measurements, and recording their findin

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

This kindergarten science activity will help her explore the changing states of matter which transform an egg from raw to soft to hard-boiled.

What better way to celebrate spring than with a fabulous flower party? Pack the day with fun flower activities and treats for a truly springalicious event!

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

Give your local birds a treat — and your young birdwatcher some fun — with this simple DIY bird feeder.

This science fair project idea experiments with spinning color wheels and optical illusions.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

Discover flight initiation distance as you play around in the park with this fun bird watching project!

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.